JP6237676B2 - Vehicle side structure - Google Patents

Description

  The present invention relates to a vehicle side part structure.

There is a vehicle side part structure that is disposed inside the front pillar and includes a reinforcing member having one end joined to the front wall of the front pillar and the other end joined to the upper wall or the lower wall of the rocker ( For example, see Patent Document 1).
For example, there are Patent Documents 2 and 3 as techniques related to the rocker reinforcement structure.

JP 2012-111338 A International Publication No. 2012/153425 JP-A-11-342869

  In the vehicle side portion structure described above, there is room for further improvement in that the front pillar is prevented from falling backward due to a vehicle frontal collision (hereinafter simply referred to as “front collision”).

  In view of the above facts, an object of the present invention is to provide a vehicle side part structure that can prevent the front pillar from collapsing to the rear of the vehicle due to a front collision.

  The vehicle side part structure according to the first aspect is disposed along the vehicle front-rear direction at a lower portion of the vehicle side part, and a rocker having a cross-sectional shape viewed from the vehicle front-rear direction formed in a closed cross-section, A front pillar that is raised from the front end on the vehicle front side to the upper side of the vehicle and has a cross-sectional shape that is a closed cross-section when viewed from the vehicle vertical direction, along the rocker and the front pillar as viewed from the vehicle width direction. A load receiving rod that is curved and has one end side in the longitudinal direction arranged inside the rocker and joined to the rocker, and the other end side in the longitudinal direction arranged inside the front pillar.

  According to said structure, a load receiving rod is curved along a rocker and a front pillar seeing from the outer side of a vehicle width direction. One end side of the load receiving rod in the longitudinal direction is disposed inside the rocker and joined to the rocker. On the other hand, the other end side in the longitudinal direction of the load receiving rod is disposed inside the front pillar.

  Thus, when a front collision load toward the rear of the vehicle is input to the front pillar along with the front collision, the front collision load is input to the other end side of the load receiving rod. Therefore, the load receiving rod is bent and deformed rearward of the vehicle, and the front collision load input to the other end side of the load receiving rod is transmitted to the rocker via one end side of the load receiving rod. That is, the load receiving rod resists the front collision load input to the other end side by bending rigidity. Therefore, the fall of the front pillar due to the front collision to the rear of the vehicle is suppressed.

  Further, when the collision body collides with the front surface of the vehicle on the outer side in the vehicle width direction than the front side member (hereinafter, this collision mode is referred to as “micro lap collision”), the collision body is the vehicle width of the front side member. There is a possibility of passing the outside of the direction and colliding with the front pillar directly or via the front wheel. This aspect is particularly effective for such a minute lap collision, and a collision body that collides with the front pillar can be received on the other end side of the load receiving rod. Therefore, it is possible to efficiently prevent the front pillar from collapsing to the rear of the vehicle due to the minute lap collision.

  Further, the load receiving rod extends from the front end of the rocker to the upper side of the vehicle along the front pillar while being curved. Thereby, the front collision load input to the front pillar can be received in the region on the other end side of the load receiving rod disposed inside the front pillar. Therefore, it is possible to more effectively suppress the front pillar from collapsing to the rear of the vehicle due to the front collision, in particular, the minute lap collision.

  The vehicle side part structure according to a second aspect is the vehicle side part structure according to the first aspect, wherein the load receiving rod has a cylindrical hollow part.

  According to said structure, the front collision load input into the other end side of the load receiving rod with the front collision is transmitted to the rocker via the one end side of the load receiving rod. Moreover, when the front collision load input to the other end side of the load receiving rod exceeds a predetermined value, the hollow portion of the load receiving rod is crushed and the collision energy is absorbed. Therefore, in this aspect, it is possible to control the front collision load transmitted to the rocker while suppressing the front pillar from collapsing to the rear of the vehicle due to the front collision.

  The vehicle side part structure according to a third aspect is the vehicle side part structure according to the first aspect or the second aspect, provided inside the rocker, and arranged along the vehicle front-rear direction and the vehicle vertical direction, and the load A rear bracket for supporting the one end side of the receiving rod is provided.

  According to the above configuration, the rear bracket is provided inside the rocker. The rear bracket is disposed along the vehicle longitudinal direction and the vehicle vertical direction, and supports one end side of the load receiving rod.

  Here, when the other end side of the load receiving rod is bent and deformed rearward of the vehicle due to the front collision, the one end side of the load receiving rod tries to rotate so as to rise rearward around the rear bracket.

  In contrast, in this aspect, as described above, the rear bracket is arranged along the vehicle front-rear direction and the vehicle vertical direction. Therefore, the rear bracket efficiently resists the rotation on the one end side of the load receiving rod described above. Thereby, since the rotation of the load receiving rod on one end side is suppressed, the resistance of the load receiving rod to the front impact load is increased. Therefore, the front pillar is further prevented from falling backward in the vehicle due to the front collision.

  The vehicle side part structure according to a fourth aspect is the vehicle side part structure according to the third aspect, wherein the one end side of the load receiving rod extends in the vehicle front-rear direction along the rocker, and the rear bracket is A pair of gripping wall portions that sandwich the one end side of the load receiving rod from both sides in the vehicle vertical direction are provided.

  According to said structure, the one end side of a load receiving rod is extended in the vehicle front-back direction along a rocker. Further, the rear bracket has a pair of gripping wall portions. By sandwiching one end side of the load receiving rod from both sides in the vehicle vertical direction by the pair of gripping wall portions, rotation on one end side of the load receiving rod accompanying bending deformation is further suppressed. Therefore, the resistance force of the load receiving rod against the front impact load is further increased.

  A vehicle side portion structure according to a fifth aspect is the vehicle side portion structure according to any one of the first aspect to the fourth aspect, provided inside the front pillar, and along the vehicle front-rear direction and the vehicle width direction. A front bracket is provided that is disposed and the other end side of the load receiving rod penetrates in the vehicle vertical direction.

  According to the above configuration, the front bracket is provided inside the front pillar. The front bracket is disposed along the vehicle longitudinal direction and the vehicle width direction, and one end side of the load receiving rod is penetrated in the vehicle vertical direction. Thereby, the front collision load input to the front pillar is efficiently transmitted to the other end side of the load receiving rod via the front bracket.

  Further, the front bracket is prevented from being crushed (cross-sectional collapse) by the front bracket extending in the vehicle longitudinal direction and the vehicle width direction. Thereby, the front collision load is more efficiently transmitted to the rocker via the load receiving rod and the front pillar. Therefore, the front pillar is further prevented from falling backward in the vehicle due to the front collision.

  The vehicle side portion structure according to a sixth aspect is the vehicle side portion structure according to any one of the first aspect to the fifth aspect, wherein the inside of the lower end portion of the front pillar, the inside of the front end portion of the rocker, or An intermediate bracket is provided across the inside of the lower end portion and the inside of the front end portion, and supports an intermediate portion in the longitudinal direction of the load receiving rod.

  According to said structure, an intermediate | middle bracket is provided over the lower end part of a front pillar, the front-end part of a rocker, or the inside of the said lower-end part, and the inside of the said front-end part. The intermediate bracket in the longitudinal direction of the load receiving rod is supported by the intermediate bracket, whereby the bending rigidity of the load receiving rod that resists the front impact load is increased. Therefore, the front pillar is further prevented from falling backward in the vehicle due to the front collision.

  A vehicle side part structure according to a seventh aspect is the vehicle side part structure according to any one of the first aspect to the sixth aspect, comprising an apron upper member extending forward from the front pillar to the vehicle, The other end side of the rod is disposed behind the apron upper member in the vehicle.

  According to said structure, the other end side of a load receiving rod is arrange | positioned in the vehicle rear of the apron upper member extended to a vehicle front from a front pillar. As a result, for example, when a vehicle (a collision body) whose front bumper is higher than a general vehicle (for example, a sedan), such as an SUV (Sport Utility Vehicle), collides with the front pillar due to a minute lap collision. Even so, the vehicle can be received at the other end of the load receiving rod. Therefore, it is possible to more effectively suppress the front pillar from collapsing to the rear of the vehicle due to the minute lap collision.

  As described above, according to the vehicle side part structure according to the present invention, it is possible to prevent the front pillar from collapsing to the rear of the vehicle due to the front collision.

It is the side view which looked at the vehicle side part to which the vehicle side part structure which concerns on one Embodiment was applied from the outer side of the vehicle width direction. It is the expanded sectional view cut | disconnected along 2-2 line of FIG. FIG. 3 is an enlarged cross-sectional view taken along line 3-3 in FIG. 1. FIG. 4 is an enlarged cross-sectional view taken along line 4-4 of FIG. It is an enlarged side view corresponding to FIG. 1 which shows the vehicle side part to which the modification of the vehicle side part structure which concerns on one Embodiment was applied. It is an enlarged side view corresponding to FIG. 1 which shows the vehicle side part to which the modification of the vehicle side part structure which concerns on one Embodiment was applied. It is an enlarged side view corresponding to FIG. 1 which shows the vehicle side part to which the modification of the vehicle side part structure which concerns on one Embodiment was applied. It is an enlarged side view corresponding to FIG. 1 which shows the vehicle side part to which the modification of the vehicle side part structure which concerns on one Embodiment was applied.

  Hereinafter, a vehicle side part structure according to an embodiment of the present invention will be described. In addition, arrow FR shown suitably in each figure has shown the vehicle front (front side of a vehicle front-back direction). An arrow UP indicates the upper side of the vehicle (the upper side in the vertical direction of the vehicle). Furthermore, the arrow IN indicates the inner side in the vehicle width direction.

  FIG. 1 shows a vehicle side portion 12S of a vehicle 12 to which the vehicle side portion structure 10 according to the present embodiment is applied. A front door opening 14 for a passenger to get on and off is formed in the vehicle side portion 12S. The vehicle side part structure 10 includes a rocker 20, a front pillar 30, and a load receiving rod 50.

  The rocker 20 is a metal beam-like skeleton member that forms the lower edge of the front door opening 14 on the vehicle lower side. The rocker 20 is disposed at the lower portion of the vehicle side portion 12S along the vehicle front-rear direction. More specifically, the rockers 20 are respectively disposed along the vehicle front-rear direction on both sides of a vehicle body floor (floor panel) (not shown) in the vehicle width direction. Further, the rocker 20 has a closed cross-sectional shape (see FIG. 2) as viewed from the vehicle front-rear direction.

  The front pillar 30 is a metal columnar skeleton member that forms a front edge of the front door opening 14 on the vehicle front side. The front pillar 30 has a closed sectional shape (see FIG. 3) as viewed from the vehicle vertical direction.

  The front pillar 30 includes a front pillar lower 30A and a front pillar upper 30B. The front pillar lowers 30A are disposed on both sides of a dash panel (not shown) in the vehicle width direction, and are raised from the front end 20F of the rocker 20 on the vehicle front side along the vehicle vertical direction. A front side door (not shown) that opens and closes the front door opening 14 is rotatably attached to the front pillar lower 30A via a door hinge. A front pillar upper 30B is connected to the upper end of the front pillar lower 30A.

  A front wheel 16 is arranged in front of the lower 30AL of the front pillar lower 30A. Further, the apron upper member 18 extends forward of the vehicle from the upper portion 30AU of the front pillar lower 30A.

  The front pillar upper 30B extends from the upper end of the front pillar lower 30A along the outer end of the windshield glass (front glass) (not shown) in the vehicle width direction to the vehicle upper side and the vehicle rear side. A roof side rail (not shown) extends rearward from the upper end of the front pillar upper 30B.

  The load receiving rod 50 is disposed inside the rocker 20 and the front pillar lower 30 </ b> A (within a closed cross section), and transmits a front collision load (collision load) F input to the front pillar 30 along with the front collision to the rocker 20. It is a rod-shaped reinforcing member. Specifically, the load receiving rod 50 is formed of a metallic pipe material formed in a cylindrical shape. The load receiving rod 50 has a hollow portion 50V (see FIG. 2) extending over the entire length in the longitudinal direction.

  The load receiving rod 50 is curved in an L shape along the rocker 20 and the front pillar 30 when viewed from the vehicle width direction. The rod rear portion 50 </ b> R on one end side (vehicle rear side) in the longitudinal direction of the load receiving rod 50 is disposed inside the front portion of the rocker 20. The rod rear portion 50R extends linearly in the vehicle longitudinal direction along the rocker 20 and is joined to the rocker 20 via the rear bracket 26.

  Specifically, as shown in FIG. 2, the rocker 20 has a rocker outer panel 22 and a rocker inner panel 24 that are divided in the vehicle width direction. The rocker outer panel 22 is a panel material that forms an outer portion of the rocker 20 in the vehicle width direction. Further, the rocker outer panel 22 is formed in a hat shape in which a cross-sectional shape viewed from the front-rear direction of the vehicle is opened on the inner side in the vehicle width direction. The rocker outer panel 22 has an inner wall portion 22A, an upper wall portion 22B, a lower wall portion 22C, and upper and lower flange portions 22D.

  The rocker inner panel 24 is a panel material that forms an inner portion of the rocker 20 in the vehicle width direction. The rocker inner panel 24 is disposed inside the rocker outer panel 22 in the vehicle width direction. Further, the rocker inner panel 24 is formed in a hat shape in which a cross-sectional shape viewed from the front-rear direction of the vehicle is opened on the outer side in the vehicle width direction. The rocker inner panel 24 has an inner wall portion 24A, an upper wall portion 24B, a lower wall portion 24C, and upper and lower flange portions 24D.

  The rocker outer panel 22 and the rocker inner panel 24 are joined by joining means such as welding in a state where the upper and lower flange portions 22D and 24D are overlapped with each other. A closed section is formed by the rocker outer panel 22 and the rocker inner panel 24.

  The rear bracket 26 is a metal panel member disposed along the vehicle longitudinal direction and the vehicle vertical direction. Further, the rear bracket 26 is formed in a hat shape with a cross-sectional shape viewed from the front-rear direction of the vehicle, the inside of the vehicle width direction being opened. The rear bracket 26 has a housing recess 28, an upper flange portion 29A, and a lower flange portion 29B.

  The housing recess 28 is recessed toward the outside in the vehicle width direction with respect to the upper flange portion 29 </ b> A and the lower flange portion 29 </ b> B, and extends in the vehicle front-rear direction along the rocker 20. A rod rear portion 50 </ b> R is fitted into the housing recess 28.

  The accommodating recess 28 has a bottom wall portion 28A and a pair of gripping wall portions 28B. The bottom wall portion 28A is disposed outside the rod rear portion 50R in the vehicle width direction, and is joined to the rod rear portion 50R by welding or the like. The pair of gripping wall portions 28B are disposed on both sides of the rod rear portion 50R in the vehicle vertical direction, and are joined to the rod rear portion 50R by welding or the like. By sandwiching the rod rear portion 50R from both sides in the vehicle vertical direction by the pair of gripping wall portions 28B, the displacement of the rod rear portion 50R in the vehicle vertical direction is restricted.

  The upper flange portion 29A extends upward from the inner end of the upper grip wall portion 28B in the vehicle width direction. The upper flange portion 29A is joined to the flange portions 22D and 24D by welding or the like while being sandwiched between the upper flange portions 22D and 24D of the rocker outer panel 22 and the rocker inner panel 24.

  The lower flange portion 29B extends downward from the inner end of the lower grip wall portion 28B in the vehicle width direction. The lower flange portion 29B is joined to the flange portions 22D and 24D by welding or the like while being sandwiched between the lower flange portions 22D and 24D of the rocker outer panel 22 and the rocker inner panel 24.

  As shown in FIG. 1, the rod front portion 50F on the other end side (vehicle front side) in the longitudinal direction of the load receiving rod 50 is disposed inside the front pillar lower 30A. The rod front portion 50F extends linearly in the vehicle vertical direction along the lower portion 30AL of the front pillar lower 30A, and is joined to the lower portion 30AL via the front bracket 40.

  Specifically, as shown in FIG. 3, the front pillar lower 30 </ b> A includes a pillar outer panel 32, a pillar outer reinforcement 34, a pillar inner panel 36, and a hinge reinforcement 38.

  The pillar outer panel 32 is disposed outside the pillar outer reinforcement 34 in the vehicle width direction. The pillar outer panel 32 and the pillar outer reinforcement 34 are joined to each other to form a panel material that forms an outer portion (front pillar outer portion) in the vehicle width direction of the front pillar lower 30A. Further, the pillar outer panel 32 and the pillar outer reinforcement 34 are formed in a hat shape in which a cross-sectional shape viewed from the vehicle vertical direction is open in the vehicle width direction.

  The pillar inner panel 36 is a panel material that forms an inner portion of the front pillar lower 30A in the vehicle width direction. The pillar inner panel 36 has a cross-sectional shape viewed from the vehicle vertical direction, and is formed in a hat shape that is open on the outer side in the vehicle width direction. The pillar outer panel 32, the pillar outer reinforcement 34, and the pillar inner panel 36 are joined by welding or the like in a state where the front and rear flange portions 32A, 34A, and 36A are overlapped. Thus, a closed section is formed by the pillar outer panel 32 and the pillar outer reinforcement 34, and a closed section is formed by the pillar outer reinforcement 34 and the pillar inner panel 36.

  A hinge reinforcement 38 is disposed between the pillar outer reinforcement 34 and the pillar inner panel 36. The hinge reinforcement 38 is formed in a U shape with a cross-sectional shape viewed from the vehicle up-down direction and opened in the vehicle width direction. The hinge reinforcement 38 has an outer wall 38A, a front wall 38B, and a rear wall 38C. The outer side wall 38A is joined to the pillar outer reinforcement 34 together with a door hinge (not shown) by welding or the like. A front bracket 40 is disposed inside the hinge reinforcement 38.

  The front bracket 40 is disposed along the vehicle front-rear direction and the vehicle width direction, and is a bulk that is fitted into the hinge reinforcement 38. The front bracket 40 has a partition wall portion 40A and a flange portion 40B. The partition wall portion 40A is formed in a plate shape extending in the vehicle front-rear direction and the vehicle width direction, and is arranged with the thickness direction as the longitudinal direction (vehicle vertical direction) of the front pillar lower 30A. The partition wall 40A partitions the inside of the front pillar lower 30A, more specifically, the inside of the hinge reinforcement 38 into a plurality of compartments (rooms) in the longitudinal direction.

  In addition, an attachment hole 41 is formed in the central portion of the partition wall portion 40A so as to penetrate the partition wall portion 40A in the thickness direction (the vehicle vertical direction). The mounting hole 41 is a circular hole whose diameter is slightly larger than the diameter of the rod front portion 50F of the load receiving rod 50. The rod front portion 50F is penetrated (inserted) into the mounting hole 41 in the vehicle vertical direction, and the outer peripheral portion of the rod front portion 50F is joined to the partition wall portion 40A by welding or the like.

  The flange portion 40B is raised from the outer peripheral portion of the partition wall portion 40A, and is joined to the outer wall portion 38A, the front wall portion 38B, and the rear wall portion 38C of the hinge reinforcement 38 by welding or the like. Then, the front collision load F (see FIG. 1) input to the front pillar lower 30A with the front collision is transmitted to the rod front portion 50F via the front bracket 40.

  The rod intermediate portion 50M at the intermediate portion in the longitudinal direction of the load receiving rod 50 is a curved portion that curves over the front end portion 20F of the rocker 20 and the lower portion 30AL of the front pillar lower 30A. The rod intermediate portion 50M is joined to the lower end portion of the front pillar lower 30A via the intermediate bracket 42.

  Specifically, as shown in FIG. 4, the intermediate bracket 42 is disposed inside the lower end portion of the front pillar lower 30 </ b> A along the vehicle longitudinal direction and the vehicle vertical direction. The intermediate bracket 42 has a cross-sectional shape viewed from the axial direction of the rod intermediate portion 50M, and is formed in a hat shape that is open on the inner side in the vehicle width direction. Further, the intermediate bracket 42 has an accommodation recess 44, a front flange portion 46A, and a rear flange portion 46B.

  The accommodation recess 44 is recessed toward the outside in the vehicle width direction with respect to the front flange portion 46A and the rear flange portion 46B, and is a recess into which the rod intermediate portion 50M is fitted. The housing recess 44 has a bottom wall portion 44A and a pair of gripping wall portions 44B.

  The bottom wall portion 44A is disposed outside the rod intermediate portion 50M in the vehicle width direction, and is joined to the rod intermediate portion 50M by welding or the like. The pair of gripping wall portions 44B are disposed on both sides of the rod intermediate portion 50M in the vehicle front-rear direction, and are joined to the rod intermediate portion 50M by welding or the like. By sandwiching the rod intermediate portion 50M from both sides in the vehicle front-rear direction by the pair of gripping wall portions 44B, the displacement of the rod intermediate portion 50M in the vehicle front-rear direction is restricted.

  The front flange portion 46A extends forward of the vehicle from the inner end portion in the vehicle width direction of the front gripping wall portion 44B. The front flange portion 46A is sandwiched between the pillar outer reinforcement 34 and the front flange portions 34A, 36A of the pillar inner panel 36, and is joined to the flange portions 34A, 36A by welding or the like.

  The rear flange portion 46B extends rearward from the inner end of the rear grip wall portion 44B in the vehicle width direction. The rear flange portion 46B is sandwiched between the pillar outer reinforcement 34 and the rear flange portions 34A and 36A of the pillar inner panel 36, and is joined to the flange portions 34A and 36A by welding or the like. Yes.

  Next, the operation of this embodiment will be described.

  As shown in FIG. 1, according to the vehicle side part structure 10 according to the present embodiment, the load receiving rod 50 is curved in an L shape along the rocker 20 and the front pillar 30 when viewed from the outside in the vehicle width direction. Has been. The rod rear portion 50 </ b> R of the load receiving rod 50 is disposed inside the rocker 20, and is joined to the rocker 20 via the rear bracket 26.

  On the other hand, the rod front portion 50F of the load receiving rod 50 is disposed inside the lower portion 30AL of the front pillar lower 30A, and is joined to the lower portion 30AL via the front bracket 40. The rod intermediate portion 50M of the load receiving rod 50 is disposed inside the lower end portion of the front pillar lower 30A, and is joined to the lower end portion via the intermediate bracket 42.

  Accordingly, when the collision body W collides with the front pillar lower 30A directly or through the front wheel 16 in association with the minute lap collision, the front collision load F toward the rear of the vehicle is input to the front pillar 30. The front collision load F is input to the rod front portion 50F of the load receiving rod 50 through the front bracket 40. Thereby, the rod front portion 50F of the load receiving rod 50 is bent and deformed rearward (in the direction of the arrow K) with the intermediate bracket 42 as a fulcrum, and the front collision load F is transmitted to the rocker 20 via the rod rear portion 50R. That is, the load receiving rod 50 resists the front collision load F by bending rigidity. Accordingly, the front pillar 30 is prevented from falling backward in the vehicle due to the minute lap collision.

  As described above, in this embodiment, the front pillar 30 of the load receiving rod 50 receives the front collision load F associated with the minute lap collision, so that the front pillar 30 can be efficiently tilted backwards due to the minute lap collision. Can be suppressed.

  Further, the load receiving rod 50 extends from the front end 20F of the rocker 20 to the upper side of the vehicle along the front pillar lower 30A while being curved. Thereby, the front collision load F input to the front pillar lower 30A can be received in a region extending from the rod intermediate portion 50M of the load receiving rod 50 to the rod front portion 50F. Therefore, it is possible to more effectively suppress the front pillar 30 from collapsing toward the rear of the vehicle due to the minute lap collision.

  The rod front portion 50F is joined to the front pillar lower 30A via the front bracket 40. The front bracket 40 has a partition wall portion 40A extending in the vehicle front-rear direction and the vehicle width direction. Thereby, the front collision load F input to the front pillar 30 is efficiently transmitted to the rod front portion 50F via the partition wall portion 40A.

  And since the cross-sectional shape of 30 A of front pillar lowers is hold | maintained by the partition wall part 40A, the crushing (cross-sectional collapse) of the said front pillar lower 30A is suppressed. Thereby, the front collision load F is more efficiently transmitted to the rocker 20 through the load receiving rod 50 and the front pillar lower 30A.

  The rod intermediate portion 50M is joined to the lower end portion of the front pillar lower 30A via the intermediate bracket 42. By supporting the rod intermediate portion 50M by the intermediate bracket 42, the bending rigidity of the load receiving rod 50 that resists the front collision load F is increased.

  Further, the rod rear portion 50 </ b> R is joined to the rocker 20 via the rear bracket 26. The rear bracket 26 is disposed along the vehicle longitudinal direction and the vehicle vertical direction.

  Here, when the front impact load F is applied to the rod front portion 50F of the load receiving rod 50, the load receiving rod 50 is bent and deformed rearward of the vehicle, and the rod rear portion 50R rises rearward around the rear bracket 26. (In the direction of arrow R in FIG. 1). On the other hand, in the present embodiment, as described above, the rear bracket 26 is formed in a hat shape in which the cross-sectional shape viewed from the vehicle front-rear direction is opened in the vehicle width direction, Arranged along the direction. A rod rear portion 50 </ b> R is fitted into the housing recess 28 of the rear bracket 26. The upper flange portion 29A of the rear bracket 26 is joined in a state of being sandwiched between the upper flange portions 22D and 24D of the rocker outer panel 22 and the rocker inner panel 24. On the other hand, the lower flange portion 29B of the rear bracket 26 is joined in a state of being sandwiched between the lower flange portions 22D and 24D of the rocker outer panel 22 and the rocker inner panel 24. As a result, as described above, when the rod rear portion 50R attempts to rotate, the load is efficiently transmitted to the rocker 20 via the rear bracket 26. Therefore, the rotation of the rod rear portion 50R is suppressed.

  The rear bracket 26 has a pair of gripping wall portions 28B. By sandwiching the rod rear portion 50R from both sides in the vehicle vertical direction by the pair of gripping wall portions 28B, the rotation of the rod rear portion 50R is further suppressed. Therefore, the front pillar 30 is further prevented from falling backward due to the front collision.

  And the load receiving rod 50 has the hollow part 50V covering the full length of the longitudinal direction. Thereby, when the front collision load F input to the rod front portion 50F of the load receiving rod 50 becomes a predetermined value or more, for example, the predetermined hollow portion 50V of the load receiving rod 50 is crushed and the collision energy is absorbed. Thereby, it is possible to control the front collision load transmitted to the rocker 20 while suppressing the front pillar 30 from falling backward in the vehicle due to the front collision.

  Next, a modification of this embodiment will be described.

  In the above embodiment, the rear bracket 26 and the intermediate bracket 42 have a hat shape in which the cross-sectional shape viewed from the vehicle front-rear direction is opened inside the vehicle width direction, but the embodiment is not limited thereto. The cross-sectional shape of the rear bracket 26 and the intermediate bracket 42 viewed from the vehicle front-rear direction may be, for example, a hat shape in which the outer side in the vehicle width direction is opened. Further, the rear bracket 26 may be a bulk disposed inside the rocker 20 along the vehicle width direction and the vehicle vertical direction, for example. Further, the intermediate bracket 42 may be a bulk similar to the front bracket 40.

  Moreover, in the said embodiment, although the intermediate bracket 42 is provided inside the lower end part of 30 A of front pillar lowers, the said embodiment is not restricted to this. For example, the intermediate bracket 42 may be provided inside the front end portion 20F of the rocker 20, or may be provided across the inside of the lower end portion of the front pillar lower 30A and the inside of the front end portion 20F of the rocker 20. .

  Moreover, in the said embodiment, although the front side bracket 40 is engage | inserted inside the hinge reinforcement 38, even if the front side bracket is inserted in the closed cross section formed by the pillar outer reinforcement 34 and the pillar inner panel 36, for example. good.

  Further, the front bracket 40 may be formed of two parts divided in the vehicle front-rear direction or the vehicle width direction. In this case, the front bracket 40 can be easily assembled to the front pillar lower 30A. Furthermore, in the said embodiment, although the front side bracket 40 is made into the bulk, the front side bracket 40 may be made into the bracket arrange | positioned along the vehicle front-back direction and the vehicle up-down direction like the intermediate bracket 42, for example. .

  In the above embodiment, the rod front portion 50F, the rod intermediate portion 50M and the rod rear portion 50R of the load receiving rod 50 are supported by the front bracket 40, the intermediate bracket 42 and the rear bracket 26, respectively. Not limited to. In the above embodiment, at least one of the front bracket 40 and the intermediate bracket 42 can be omitted.

  For example, in the modification shown in FIG. 5, the front bracket 40 that supports the rod front portion 50F is omitted. In this modification, the rod front portion 50F of the load receiving rod 50 is in contact with the front wall portion 30A1 on the vehicle front side of the front pillar lower 30A. By receiving the front collision load F input to the front pillar lower 30A by the rod front portion 50F, the front wall portion 30A1 of the front pillar lower 30A is prevented from being crushed. The front wall portion 30A1 of the front pillar lower 30A is formed by, for example, a front wall portion 34B (see FIG. 3) on the vehicle front side of the pillar outer reinforcement 34.

  Further, the load receiving rod 50 may be directly joined to the front pillar lower 30 </ b> A or the rocker 20 without using the front bracket 40, the intermediate bracket 42, and the rear bracket 26.

  Next, in the above embodiment, one load receiving rod 50 is provided inside the rocker 20 and the front pillar lower 30A, but the above embodiment is not limited thereto. For example, in the modification shown in FIG. 6, two load receiving rods 50 and 52 are provided inside the rocker 20 and the front pillar lower 30A. By providing the plurality of load receiving rods 50 and 52 inside the rocker 20 and the front pillar lower 30A in this way, the rigidity of the front pillar lower 30A in the vehicle front-rear direction is enhanced. Therefore, the front pillar 30 is further prevented from falling backward due to the front collision.

  Next, in the above embodiment, the rod front portion 50F of the load receiving rod 50 is disposed inside the lower portion 30AL of the front pillar lower 30A, but the above embodiment is not limited thereto. For example, as in the modification shown in FIG. 7, the rod front portion 50F of the load receiving rod 50 may be disposed inside the upper portion 30AU of the front pillar lower 30A.

  Specifically, the rod front portion 50F extends from the front end portion 20F of the rocker 20 to the upper portion 30AU of the front pillar lower 30A via the front pillar lower 30A. The rod front portion 50F is disposed on the rear side of the apron upper member 18 and is in contact with the front wall portion 30A1 of the front pillar lower 30A. Moreover, in this modification, the front bracket 40 (refer FIG. 1) which supports the rod front part 50F is abbreviate | omitted.

  Here, for example, when a collision body W having a higher front bumper position than a general vehicle (for example, a sedan) such as an SUV, a minivan, or a one box collides with the vehicle 12, a collision wrap W There is a possibility of colliding with the upper part 30AU of the pillar lower 30A.

  On the other hand, in the present modification, even when the collision body W collides with the upper portion 30AU of the front pillar lower 30A, the collision body W can be received by the rod front portion 50F of the load receiving rod 50. Therefore, it is possible to more effectively suppress the front pillar 30 from collapsing toward the rear of the vehicle due to the minute lap collision.

  Further, at the time of full lap collision or offset collision, the front collision load F may be input to the upper portion 30AU of the front pillar lower 30A via the apron upper member 18. This modification is also effective for such full-wrap collisions and offset collisions.

  Next, in the modification shown in FIG. 8, the load receiving rod 50 is provided with two fragile portions 50T. Specifically, the two fragile portions 50T are provided at portions of the load receiving rod 50 on both sides of the intermediate bracket 42 in the vehicle front-rear direction.

  Here, in this modification, the two weak parts 50T are formed as follows. That is, in the load receiving rod 50 other than the two weak portions 50T (shaded portions in FIG. 8), the strength (for example, bending strength) is higher than that of the two weak portions 50T by heat treatment such as quenching. Thereby, the part (parts other than the shaded part) of which the strength is relatively lowered in the load receiving rod 50 is defined as the fragile part 50T.

  For example, when the front impact load F input to the rod front portion 50F of the load receiving rod 50 with a front impact becomes a predetermined value or more, the load receiving rod 50 bends starting from at least one of the two weak portions 50T. Deformed. As the load receiving rod 50 is bent and deformed, the collision energy is absorbed. Therefore, the front pillar 30 is further prevented from falling backward due to the front collision.

  In this modification, two weak parts 50T are formed by heat-treating a predetermined part of the load receiving rod 50, but this modification is not limited to this. For example, the fragile portion may be a portion of the load receiving rod 50 in which a through hole, a notch, or the like is formed. Moreover, the number and arrangement | positioning of the weak part provided in the load receiving rod 50 can be changed suitably.

  Next, in the said embodiment, although the load receiving rod 50 has the hollow part 50V over the full length of the longitudinal direction, the said embodiment is not restricted to this. For example, the load receiving rod 50 may be partially filled with a metal material, a resin material, or the like. In this case, the load receiving rod 50 is partially formed with a hollow portion 50V. Furthermore, the load receiving rod 50 is not limited to a pipe material, and may be formed of a solid rod-shaped member.

  Next, a silencing hole (silencing hole) may be formed on the outer peripheral surface of the load receiving rod 50. Specifically, when a hole is formed in the outer peripheral surface of the load receiving rod 50, the reflected wave of the sound reflected on the outer peripheral surface of the load receiving rod 50 and the reflection on the inner peripheral surface of the load receiving rod 50 through the hole. There is a phase difference between the reflected waves of the recorded sound. At this time, in the sound of a specific frequency, the reflected wave of the sound reflected on the inner peripheral surface of the load receiving rod 50 has an opposite phase to the reflected wave of the sound reflected on the outer peripheral surface of the load receiving rod 50. Then, the two reflected waves having opposite phases are superimposed and cancel each other, thereby being silenced. Therefore, by forming a hole for silencing on the outer peripheral surface of the load receiving rod 50, noise at a specific frequency can be reduced. In addition, the hole for noise reduction may be used also as the hole for weak parts mentioned above.

  Next, the above embodiment is effective not only for a minute lap collision but also for various front collisions such as a full lap collision and an offset collision in which a front collision load is input to the front pillar 30.

  As mentioned above, although one embodiment of the present invention was described, the present invention is not limited to such an embodiment, and one embodiment and various modifications may be used in combination as appropriate, and the gist of the present invention will be described. Of course, various embodiments can be implemented without departing from the scope.

DESCRIPTION OF SYMBOLS 10 Vehicle side part structure 12S Vehicle side part 18 Apron upper member 20 Rocker 20F Front end part 26 Rear side bracket 28B Holding wall part (a pair of holding wall part)
30 Front pillar 40 Front bracket 50 Load receiving rod 50R Rod rear portion (one end side in the longitudinal direction of the load receiving rod)
50F rod front (the other end in the longitudinal direction of the load receiving rod)
50M Rod intermediate part (Intermediate part of load receiving rod in the longitudinal direction)
50V Hollow part 52 Load receiving rod

Claims (7)

A rocker that is disposed along the vehicle front-rear direction in the lower part of the vehicle side portion, and has a cross-sectional shape that is formed in a closed cross-section as viewed from the vehicle front-rear direction,
A front pillar that is raised from the front end of the rocker on the front side of the vehicle to the upper side of the vehicle, and has a cross-sectional shape that is formed in a closed cross-sectional shape when viewed from the vehicle vertical direction,
Curved along the rocker and the front pillar as viewed from the vehicle width direction, one end side in the longitudinal direction is arranged inside the rocker and joined to the rocker, and the other end side in the longitudinal direction is inside the front pillar. A load receiving rod to be arranged;
A rear bracket provided inside the rocker and supporting the one end side of the load receiving rod;
Bei to give a,
The rear bracket is
A pair of gripping wall portions facing each other in the vehicle vertical direction and sandwiching the one end side of the load receiving rod from both sides in the vehicle vertical direction;
A bottom wall portion disposed between the pair of gripping wall portions, extending in a vehicle vertical direction and connecting the pair of gripping wall portions;
Having
Vehicle side part structure. The load receiving rod has a cylindrical hollow portion.
The vehicle side part structure according to claim 1. The rear bracket, Ru are arranged along the longitudinal direction and the vehicle vertical direction the vehicle,
The vehicle side part structure according to claim 1 or 2. Wherein one end of the load receiving rods, Ru extends in the longitudinal direction of the vehicle along said rocker,
The vehicle side part structure according to claim 3. A front bracket provided inside the front pillar, disposed along the vehicle longitudinal direction and the vehicle width direction, and having the other end side of the load receiving rod penetrated in the vehicle vertical direction;
The vehicle side part structure according to any one of claims 1 to 4. Provided in the lower end portion of the front pillar, in the front end portion of the rocker, or in the lower end portion and in the front end portion, and supports the intermediate portion in the longitudinal direction of the load receiving rod. With an intermediate bracket,
The vehicle side part structure according to any one of claims 1 to 5. An apron upper member extending forward of the vehicle from the front pillar,
The other end side of the load receiving rod is disposed on the rear side of the apron upper member.
The vehicle side part structure of any one of Claims 1-6.

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